Display screen or portion thereof with icon



FIG. 1 is a front view for a display screen or portion thereof with icon showing our new design; and,

FIG. 2 is the enlarged front view thereof, without broken lines for clarity of disclosure.

The evenly spaced broken lines illustrating portions of the display screen are for environmental purposes only and form no part of the claimed design.

The dot dash lines define the boundary of the claimed design and form no part thereof. 

CLAIM The ornamental design for a display screen or portion thereof with icon, as shown and described. 